*#746025625#Displays the SIM Clock status, if your phone supports this power saving feature"SIM Clock Stop Allowed", it means you will get the best standby time possible.

*#7760#Manufactures code.

*#7780#Restore factory settings.

*#8110#Software version for the nokia 8110.

*#92702689#Displays -1.Serial Number,2.Date Made,3.Purchase Date,4.Date of last repair (0000 for no repairs),5.Transfer User Data.To exit this mode you need to switch your phone off then on again. ( Favourite )

*#94870345123456789#Deactivate the PWM-Mem.

**21*number#Turn on "All Calls" diverting to the phone number entered.

**61*number#Turn on "No Reply" diverting to the phone number entered.

**67*number#Turn on "On Busy" diverting to the phone number entered.

12345This is the default security code. press and hold # Lets you switch between lines